Mattt, I provided log and detailed CPU measure to the support team (Request #54480). Development team answer (rather expeditious I think) : "During navigation, CPU usage will always be high. This is the nature of the application and the contents".

Navigating Plex leads to very high CPU usage (150%) on a MacBookPro 11,5 (Core i7 2.5 GHz 16GB RAM, AMD Radeon R9 M370X 2GB VRAM). If I limit CPU usage using cputhrottle command on thebrain9 process, I can notice that it does not impact navigation performance, so I'm really wondering what can justify this high CPU usage. Did anybody faced this behavior ?

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